11877940 has 24 divisors (see below), whose sum is σ = 25227720. Its totient is φ = 4697088.

The previous prime is 11877923. The next prime is 11877953. The reversal of 11877940 is 4977811.

11877940 = T₅₉ + T₆₀ + ... + T₄₁₄.

It can be written as a sum of positive squares in 4 ways, for example, as 236196 + 11641744 = 486^2 + 3412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11877940.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (1051155).

Almost surely, 2^11877940 is an apocalyptic number.

11877940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11877940 is an abundant number, since it is smaller than the sum of its proper divisors (13349780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11877940 is a wasteful number, since it uses less digits than its factorization.

11877940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771 (or 6769 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 11877940 is about 3446.4387416578. The cubic root of 11877940 is about 228.1639581929.

The spelling of 11877940 in words is "eleven million, eight hundred seventy-seven thousand, nine hundred forty".